Ok im interested to know just how many people can play this game smoothly at high res without it stuttering or suffering from massive fps drops. My theory is that people with 32-bit OS's can run the game much smoother than people who use a 64-bit OS.

Athlon X2 5000+ (2x2.6 GHz w/ 512k L2 cache) with a 512 MB GeForce 9600GT, running Windows XP x64 Professional. Framerate is smooth enough at 1152x864, most details set to high, no antialiasing or anisotropy enabled. I can't complain, but I am looking forward to how it does when I kill this install over Christmas and install Windows 7.

I run the game @ 1920 x 1200 with maxed settings with AA and AF on, shader model 3, and Physx turned off. It runs fine, although after about 2 hours play I did turn down shadows a notch as it had gotten a little treacle like in some places... after that I got around 30FPS solidly though the game.

On Vista x64, the game ran great with a single GTX 260 CORE 216 and a 9800GT dedicated to PhysX. Now that I'm running two GTX 260 CORE 216s in SLI, the game ALWAYS crashes, unless I disable SLI. Hardware problem, or game problem? I have no trouble elsewhere with SLI.